What is the center of gravity?

centre of gravity

All parts of an object are affected by gravity. From the effect point of view, we can think that the gravity of each part is concentrated on one point, which is called the center of gravity of the object.

For objects with uniform mass distribution, the position of the center of gravity is only related to the shape of the object. For objects with regular shapes, the center of gravity is on the geometric center of gravity. For example, the center of a uniform thin straight rod is at the midpoint of the rod, the center of gravity of a uniform object is at the center of the ball, and the center of gravity of a uniform cylinder is at the midpoint of the shaft. The center of gravity of irregular objects can be determined by hanging method.

For objects with uneven mass distribution, the position of the center of gravity is not only related to the shape of the object, but also related to the mass distribution inside the object. The center of gravity of the truck changes with the change of loading capacity and loading position, and the center of gravity of the crane changes with the weight and height of the hoisted object.

centre of gravity

Ordinary people have limbs and a trunk. Head first. It stands and throws the ball. And posture. Stand straight. The center of gravity was born. Center of gravity is stable. The so-called opportunity to build momentum. The center of gravity is gone. There is a danger of reversal. That is, there is no chance. It is out of the question. Boxing is the basis of function. It depends on the stability of the center of gravity. And the center of gravity can be divided into fixed and mobile. Fixer. Master, it's time to practice boxing by yourself. Every move. A gesture. We must always pay attention to it. Or turn around. Or both. Center of gravity and virtual reality belong to one. Reality can change impermanence The center of gravity is not. Can move. Because it is the master of everything. Don't make a move. Let the enemy know whether we are false or true. Another example is fighting. Heart is order. Qi is a flag. The waist is a squat. Tai Ji Chuan takes strength as a tactic. Virtual reality is a strategy. Spirit is command. Listening is a rare thing. Focus on the coach. Scholars. We should always feel it silently. This will be of great use to the whole of Stowe. The center of gravity activity is called. This is between me and him. Although in a duel. You must always keep your center of gravity. And attack the center of gravity of others. That is, adhere to the commander-in-chief of the whole army. I won't let the coach lose.

The center of gravity is the intersection of the median lines of three sides of a triangle.

1, and the ratio of the distance from the center of gravity to the vertex to the distance from the center of gravity to the midpoint of the opposite side is 2: 1.

2. Equal product:

The areas of the three triangles formed by the center of gravity and the three vertices of the triangle are equal.

3。 The sum of squares of the distances from the center of gravity to the three vertices of the triangle is the smallest.

Edit entry

Open classification:

Science, Mathematics, Physics, Concepts, Tai Ji Chuan Terminology.

References:

1. Source: Science and Technology Reference Group of National Library.

2. Math books

Find a simple object: for example, a book.

1. Lift a corner of the book (point A), and after it is still, draw a line perpendicular to the ground from point A with a pen.

2. Lift another corner (point B) and draw a line perpendicular to the ground from point B after it is still.